Unofficial, free JSON API for every Y Combinator company — updated daily.
| List | Count | Endpoint |
|---|
| Batch | Count | Endpoint |
|---|
| Industry | Count | Endpoint |
|---|
| Tag | Count | Endpoint |
|---|
Every endpoint (except meta.json) returns an array of company objects.
| Property | Type | Description |
|---|---|---|
id |
number |
Unique company ID |
name |
string |
Company name |
slug |
string |
URL-friendly slug |
former_names |
string[] |
Previous names |
small_logo_thumb_url |
string |
Square thumbnail logo URL |
website |
string|null |
Company website |
all_locations |
string|null |
Locations separated by semicolons |
long_description |
string|null |
Full description |
one_liner |
string|null |
One-line description |
team_size |
number|null |
Number of employees |
industry |
enum |
"B2B" | "Consumer" | "Education" |
"Fintech" | "Government" | "Healthcare" |
"Industrials" | "Real Estate and Construction" |
"Unspecified" |
subindustry |
enum |
59 sub-industry categories (e.g. "B2B -> Infrastructure",
"Healthcare -> Diagnostics") |
launched_at |
number |
Launch date (Unix timestamp) |
tags |
string[] |
Company tags |
tags_highlighted |
string[] |
Highlighted tags |
top_company |
boolean|null |
YC top company |
isHiring |
boolean |
Currently hiring |
nonprofit |
boolean |
Is a nonprofit |
batch |
string |
YC batch (e.g. "Winter 2026") |
status |
enum |
"Active" | "Inactive" | "Acquired" |
"Public" |
industries |
string[] |
All industries |
regions |
string[] |
Geographic regions |
stage |
enum |
"Early" | "Growth" |
app_video_public |
boolean |
Application video is public |
demo_day_video_public |
boolean |
Demo day video is public |
app_answers |
app_answer[]|null |
Application Q&A, if public |
question_answers |
question_answer[]|null |
Free-response Q&A, if public |
url |
string |
Page on ycombinator.com |
api |
string |
This API's endpoint for the company |
year_founded |
number|null |
Year founded |
city |
string|null |
City |
country |
string|null |
Country code |
linkedin_url |
string|null |
LinkedIn URL |
x_url |
string|null |
X (Twitter) URL |
fb_url |
string|null |
Facebook URL |
cb_url |
string|null |
Crunchbase URL |
github_url |
string|null |
GitHub URL |
logo_url |
string|null |
Logo image URL |
app_video_url |
string|null |
Application video URL |
dday_video_url |
string|null |
Demo day video URL |
primary_partner |
partner|null |
Assigned YC group partner |
company_photos |
string[] |
Company photo URLs |
founders |
founder[] |
List of founders |
jobs |
job[] |
Open job postings |
news |
news[] |
Press/news articles |
launches |
launch[] |
Launch YC posts |
| Property | Type | Description |
|---|---|---|
question |
string |
Application question |
answer |
string|null |
Founder's answer |
| Property | Type | Description |
|---|---|---|
question |
string |
Free-response question |
answer |
string |
Founder's answer |
| Property | Type | Description |
|---|---|---|
name |
string |
Partner's full name |
url |
string |
Profile page on ycombinator.com |
| Property | Type | Description |
|---|---|---|
user_id |
number |
YC internal user ID |
full_name |
string |
Full name |
title |
string |
Title (e.g. "Founder/CEO") |
founder_bio |
string|null |
Short bio |
is_active |
boolean |
Currently active |
linkedin_url |
string|null |
LinkedIn URL |
x_url |
string|null |
X (Twitter) URL |
avatar_thumb_url |
string |
Founder's avatar image URL |
email |
string|null |
SMTP-verified email address, or null if not found |
| Property | Type | Description |
|---|---|---|
id |
number |
Job posting ID |
title |
string |
Job title |
url |
string |
Full URL to posting |
location |
string |
Job location |
type |
enum |
"Full-time" | "Internship" | "Contract" |
"Co-founder" |
role |
enum |
"Design" | "Engineering" | "Finance" |
"Legal" | "Marketing" | "Operations" |
"Product" | "Recruiting & HR" | "Sales" |
"Science" | "Support" |
role_type |
string|null |
Specific role type |
salary_range |
string|null |
Salary range |
equity_range |
string|null |
Equity range |
experience |
enum|null |
"1+ years" | "3+ years" |
"6+ years" | "11+ years" |
"Any (new grads ok)" |
visa |
enum |
"US citizen/visa only" |
"US citizenship/visa not required" | "Will sponsor" |
skills |
string[] |
Required skills |
| Property | Type | Description |
|---|---|---|
title |
string |
Article headline |
url |
string |
Link to the article |
date |
string |
Publication date |
| Property | Type | Description |
|---|---|---|
id |
number |
Launch post ID |
title |
string |
Launch post title |
tagline |
string |
Short tagline |
body |
string |
Full post content (markdown) |
url |
string |
Full URL to the post |
votes |
number |
Number of upvotes |
created_at |
string |
ISO 8601 timestamp |
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